gistfile1.txt

require 'net/http'
require 'uri'
require 'rubygems'
require 'json'

require 'pp'

url = URI.parse('http://localhost:3000/api/shipments/2145203996')
req = Net::HTTP::Get.new(url.path)
req["Content-Type"]  = 'application/json'
req["Accept"]        = 'application/json'
req["X-SpreeAPIKey"] = '.....'
res = Net::HTTP.new(url.host, url.port).start {|http| http.request(req) }


pp JSON.parse(res.body)